I2C slave device detection circuit

The embodiment of the utility model provides an I2C slave device detection circuit which is arranged on a slave side and can directly obtain level changes of an SCL signal and an SDA signal of an I2C host through simple cooperation of components so as to detect a communication start mark and a commu...

Full description

Saved in:
Bibliographic Details
Main Authors ZENG PENG, MA BOLUN
Format Patent
LanguageChinese
English
Published 19.04.2024
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:The embodiment of the utility model provides an I2C slave device detection circuit which is arranged on a slave side and can directly obtain level changes of an SCL signal and an SDA signal of an I2C host through simple cooperation of components so as to detect a communication start mark and a communication end mark of an I2C bus. And by arranging the delay unit and/or the signal balancing unit, the integrity of the signal is ensured, so that the state detection of the I2C bus is stable and reliable, the circuit is simple to realize, and the power consumption and the area overhead are reduced. 本申请实施例提供一种I2C从设备检测电路，设置在从机侧，通过简单的元器件的配合，可直接获取I2C主机的SCL信号和SDA信号的电平变化，进而检测所述I2C总线的通信开始标志和通信结束标志；以及通过设置延时单元和/或信号均衡单元，保证信号的完整性，使得I2C总线状态检测稳定可靠，电路实现简单，降低了功耗和面积开销。
Bibliography:Application Number: CN202322469760U